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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
AIRISTAR TECHNOLOGIES LLC	WAUKEGAN IL

International Classification(s)

• F24F:AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION;....
• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Burke, Paul C	Lake Forest, US	31	1124
Harris, Charles	Lincoln City, US	23	642
Kalous, D Scott	Kenosha, US	36	1056

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Dec 13, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Dec 13, 2030
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 13, 2034

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 13, 2023	US,11674703,B2   US11674703B2	GRANTED PATENT AS SECOND PUBLICATION
July 02, 2020	US,20200208852,A1   US20200208852A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11674703

In line air filtration and purification apparatus

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